Thank you for the question and for the feedback.
If you want the buttons to be visible, but not functioning and with disabled grayish look, you can use your own approach. I am glad to see that RadControlSpy was of your help, because we developed it with this purpose - to make your work with our controls easier, giving you the ability to enjoy their rich functionality.
However, in this scenario, we have a special property for the navigation element. Please refer to the following code snippet:
|radCalendar1.CalendarElement.CalendarNavigationElement.Enabled = false;
Should you have additional questions, feel free to contact me.
the Telerik team
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